Spam Word Checker
Paste a subject line and body copy to see which words, phrases and formatting patterns spam filters penalize, how the risk breaks down by category, and what to write instead — plus structural checks on subject length, links and text-to-image balance.
Check your copy
Scored against 679+ trigger words and formatting patterns across 12 categories. Subject line triggers hurt the most, so they are scored alongside the body.
Overall risk
Paste a subject line and body copy to score it.
Risk by category
No trigger categories detected.
Your copy, flagged
Nothing pasted yet — your copy will appear here with every trigger highlighted.
Structure and formatting
0 failing · 0 to reviewFilters weigh the shape of a message as well as its wording. These checks are scored separately from the trigger words above.
No subject line entered.
Add one to check it against the 50-character guideline.
No links — nothing here for a filter to weigh.
Text only — no images to unbalance the message.
No opt-out line detected.
A plain-English opt-out ("let me know and I'll stop reaching out") keeps you compliant and earns fewer spam complaints than no exit at all.
Triggers and safer alternatives
Filters score these signals in aggregate, so swapping the top few lines is usually enough to drop a message out of the medium band.
No trigger words or patterns found. Nothing to swap out.
Related resources
Use the matching guide and solution pages to understand where this tool fits in the wider outbound infrastructure workflow.
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